LED lamp assembly

Abstract

An LED lamp assembly includes a heat-sink base having insertion notches equiangularly and radially located at a flat inner wall thereof, and a plurality of radiation fins arranged in a radial array, each radiation fin having a plug portion disposed at a top side thereof and respectively inserted into one respective insertion notch of the heat-sink base and fixedly secured thereto using a stamping technique, a lampshade fastened to the radiation fins at the top side, and an insulative connector fastened to the radiation fins at the bottom side.

Description

BACKGROUND OF THE INVENTION[0001](a) Field of the Invention[0002]The present invention relates to LED lamp technology and more particularly to a LED lamp assembly, which comprises a heat-sink base holding a series of LED devices, and a set of radiation fins arranged in a radial array and fastened to a flat inner wall of the heat-sink base using a stamping technique.[0003](b) Description of the Prior Art[0004]A conventional LED lamp assembly is comprises a radiation fin set, a heat-sink base, an insulative connector, LED devices, and a lampshade. Taiwan Utility Nos. M389826 and M419035 teach a way of connection between a radiation fin set and a heat-sink base. According to these two prior art designs, radiation fins are mounted around a tubular heat-sink base that holds a series of LED devices. During the operation of the LED devices, waste heat is transferred from the LED devices through the tubular heat-sink base to the radiation fins for dissipation into the outside open air.[0005...

AI Technical Summary

Benefits of technology

The present invention provides an LED lamp assembly that has a simple structure and can be easily assembled using a stamping technique. The radiation fin set has a stepped structure at the top side with a plug portion located at a middle part of the stepped structure. Each radiation fin also has a horizontal protruding portion located at the stepped structure and abutted against an inner side of the associated folded plug portion at a relatively lower elevation. The horizontal protruding portions of the radiation fins are respectively horizontally abutted against one another, forming an annular plane that is closely attached to the flat inner wall of the heat-sink base for rapid transfer of waste heat for quick dissipation into the outside open air.

Problems solved by technology

However, after the radiation fin set and the flat heat-sink base are assembled, the folded flanges of the radiation fins may not be closely attached to the surface of the flat heat-sink base for quick transfer of waste heat, thus lowering the heat dissipation performance.

The fabrication difficulty is likely to cause a high defective rate.

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